Can anybody help me with Combinatorics or especially with Factorials, I just don't get it (haven't gotten it in school also...).
I'm just watching the Thursdays with Ron video to this topic, so let's go with this example question:
A comittee of three people is to be chosen from four married couples. What is the number of different comittees that can be chosen if two people who are married to each other cannot both serve on the comittee.
The right answer choice is E.
Steps to the answer:
- Set up the Slots -> _ _ _ (3 choices)
- put in the numbers and multiply: 8*6*4= 192- Divide by Factorization
<- That's where the problems come, can anybody explain how I get the Factorial I have to divide by?
Thanks in advance,